Brick-machine



4 Sheets-Sheet 1;.

(No Model.)

H. H. STUKENBERG.

BRICK MACHINE.

Patented Dec. 23, 1890.

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(No Model.) 4 sneets -sneet 2.

H. H. STUKENB-ERG. BRICK MACHINE.

No. 443,413. Patente d Dec. 23, 1890.

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Patented Dec. 28, 1890.

BRIGK MACHINE,

STUKENBERG (N0 Modem lSheets-Sheet 4.

(No Model.)

H. H. STU KENBERG.

BRICK MACHINE.

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" UNITED STAT S"P TENT OFFICE.

HERMANN H. STUKENBERG, or KANSAS orrY, MISSOURI.

BRICK-MACHINE.

. SPECIFICATION forming part of Letters Patent No. 443,413, dated December 23, 1890.

Application filed June 20, 1890. Serial No. 356,061. (No model.)

To all whom it may concern:

' Be it known that I, HERMANN H. S'lUKEN- BERG, of Kansas City, in the county of J ackson and State of Missouri, have invented certain new and useful Improvements in Brick- Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

My. invention? relates to certain improvements in brick-machines; and my invention consists in features of novelty hereinafterdescribed, and pointed out in the claims.

Figure I is a longitudinal section showing the operation of my improved device. Fig. II is a top view. Fig. 111 is an end elevation. Fig. IV is an enlarged detail View of the device for raising the lower dies in order to discharge thebrieks from the molds. Fig. V is an enlarged detail perspective of the device for feeding the clay to the molds. Fig. V1 is an enlarged vertical section of one of the dashpots.

Referring to the drawings, 1 represents the main supportingframe.

2 represents a horizontal screw-shaft suitably journaled in the frame, on which there is a screw 3,said screw forming the power by which the dies and various other parts of the device are operated.

4 represents a driving-pulley'keyed rigidly to the screw-shaft 2.

upper dies16 are secured to links 18 by means- 5 6 representloose pulleys on the shaft 2, situated to either side of the fixed pulley 4.

7 8 represent curved levers fulcrumed at 9 to the main frame, said levers being re-en forced by means of truss-rods 10. e 11 represents a screw-threaded cross-head working on the screw 3. The cross-head 11 is connected to the levers 7 8 by means of links 12, said links being pivoted to the cross-head by pins 13 and to the inner ends of the levers at 14, thusforming a toggleconnection between the cross-head and said levers.

15 represents the molds in which the bricks are formed by action of the dies 16 17. The

of a shaft or pin 19. The links 18 are in turn pivoted at 20 to the outer end of the lever 7. "lhe lower dies 17 are secured to a-shaft 21, said shaft working in elongated slots 22 in links 23, said links 23 being pivoted at 24 to the outer end of the lever 8. The molds 15 have a steel lining 25, which is held in position in the surrounding boxing or frame 26 by means of set-screws 27.

28 represents the hopper into which the ground clay is placed.

29 represents ducts leading from the ho pper to a reservoir 30, the bottom of said reservoir being open for the free passage of the clay into an opening 31 in afeeder 32. When the levers 7 8 are in the position shown in dotted lines, Fig. I, the feeder 32 will also be in'position shown in dotted lines, with the opening 31 directly beneath the outlet of the reservoir 30. While the feeder is in this position sufiicient clay will pass from the reservoir to fill the opening 31. Then as the feeder is forced into the position shown in full lines,

Fig. I, the clay will drop from the opening 31 into the molds 15, ready to be pressed by the dies 16 17.

The feeder is operated by the following means:

33 represents pendent arms pivoted at 34 to the frame, said arms having bifurcated lower ends 35, which engage anti-friction rollers 36 on the feeder 32.

37 represents bars pivoted at 38 tothe arms 33, said bars having notches 40, which at times engage the upper pin 13 in the cross head. The inner ends of the bars 37 are beveled, as shown at 41. r

42 represents anti-friction rollers suitably supported by the frame, with which the beveled ends 41 of the bars 37 at times engage. As the cross-head 11 is forced by the screw from its position shown in full lines, Fig. I, to the position shown in dotted lines, Fig. I, the bars 37, which are at this time engaging the pin 13, will be carried along with the crosshead, thus forcing the arms 33, and through them the feeder 32, into the position shown in dotted lines, in which position the feeder is ready to receive a new charge of clay from the hopper. At the time the feeder about reaches the position shown in dotted lines the beveled ends 41 of the bars 37 will come in contact with the anti-friction rollers 42, and as the cross-head continues to travel backward said bars will ride upon said rollers, thus throwing the bars out of engagement with. the pin 13 in the cross-head and permitting the feeder to remain at rest for the time being. While the cross-head is traveling backward, as just described, the pivoted links 12 are forcing the inner ends of the lovers 7 S outward or into the position shown by dotted lines, Fig. I, and as the inner ends of said levers are being forced outward the outer ends are being forced inward, carrying with them the dies 16 17 and pressing the clay in the molds 15 into bricks, the dies being in the position shown in dotted lines, Fig. I, when the bricks are pressed. As the cross-head 11 again travels outward on the screw 3, the inner ends of the lovers 7 8 are drawn inward, and consequently the outer ends are forced outward, the upper die being raised out of the molds, as shown in fulllines, Fig. I.

13 represents swinging bars pivoted to the lever 7 at 20, said bars having notches or hooks 1i near their lower ends, the hooks being formed in part of adjustable plates 45, which may be adjusted by sctsercws 4.6, the object of said plates being to compensate for wear. As the dies approach each other the hooks it will engage the shaft 21, to which the lower dies 17 are secured. Then as the outer ends of the lovers 7 8 begin to travel from each other by the action of the screw on the cross-head the lever 7 will raise the bars 43 and the bars will raise the lower dies 17, the opening 22 in the links permitting the shaft 21 to travel upward. The lower dies are thus forced upward, pushing the bricks before them out of the mold, from whence they are slid onto a table 17 by the forward end 13 of the feeder 32 coming in contact with them. \Vhile the cross-head 11 is traveling outward, it comes in contact with the inner end of the feeder 32, which it forces outward until the bars 37 have passed off of the rollers 42, at which time the bars will again engage the pin 13 by means of the notches 40. As the cross-head continues to travel outward the bars 37 and arms 33 will force the feeder ahead of the cross-head until the opening 31 is directly over the molds 15, at which time a new charge of clay will be discharged into the molds ready to be pressed. As the feeder is being forced outward anti-friction rollers l0, journaled in brackets 50, said brackets being secured to the forward end of the feeder, will come in contact with the swinging bars 43, forcing them outward, as shown in Fig. I, thus releasing the shaft 21 and permitting the lower dies to fall until the shaft 21 reaches the lower end of the slo 22. In order to break the fall of the lower dies, I provide dash-pots 51, in which work pistons 52, said pistons being connected by rods 5;; with the shaft 21 on the dies.

51 represents a valve situated near the bottom of the dash-pots for the purpose of controlling the air. lhe distance between the points 9 and 20 on the lever 7 being greater than the distance between the points 9 and ill on the lever 8, it will be seen that the up per dies 16 will travel farther than the lower dies 17, said arrangement being for the purpose of leaving the pressed bricks down far enough in the molds so that as they are being forced out by the lower dies the sides and ends of the bricks, coming in contact with the sides and ends of the molds, will be smoothed off of any rough portions.

55 represents a belt-shifter by which the driving-belts 56 57 maybe shifted in order to reverse the motion of the screw 3, the belt 56 being a crossed belt and thebclt 57not being crossed. The belt-shifter is operated by 10- vers 58 59, pivoted at their upper ends to the shifter and fulcrumed at- 60 to the frame, the cross-head 11 coming in contact with the lower ends of said levers as it travels back and forth on the screw, thus shifting thebelt automatically. (See Fig. I.)

In order to avoid all strain between the crosshead and screw on which it travels, I provide a guide or frame 61, in which flanges (52 on the cross-head travel. (See Fig. V.)

1 claim as my invention 1. In a brick-machine, the combination of the pivoted die, operating-levers 7 S, dies havin g connection with said levers, screw 3, crosshcad 11 on said screw, links 12, connecting the cross-head with the lovers 7 S, pulleys -l- 5 6 on the screw-shaft, driving-belts 56 57, belt-shifter 55, and levers 50, pivoted to the belt-shifter and fulerumed to a fixed support, said levers extending into close proximity to the screw 3, whereby the cross-head 11 will come in contact with the same, and thus 0perate the belt-shifter automatically, substantially as described, and for the purpose set forth.

2. In a brickunachine, the combination of the pivoted levers 7 8, links 18 23, pivoted to said levers, dies 16, secured to the links 18, dies 17, secured to the links 23 by a pin 21. and slot 22, and swinging arms 13, pivoted at their upper ends to the lever 7 and having adjustable hooks at near their lower ends for engaging the pin 21 and raising the dies 17, substantially as described, and for the purpose set forth.

I). In a ln'ick-machine, the combination of the pivoted levers 7 8, links 18 23, dies secured to the links, the dies 17 being secured to the links by pin 21 and slot 22, swinging hooked bars 13 for engaging the pin 21, dash-pots 51, having pistons 52, rods 53, connecting the pistons with the pin 21, feeder 32, means for operating the feeder, and rollers 49 on the outer end of the feeder, whereby when said rollers are forced against the bars iii said bars will be forced outward and release the pin 21 and dies 17 and allow them to drop, substantially as described, and for the purpose set forth.

l. In a brickanachine, the combination of the screw 3, cross-head 11, working on the screw, feeder 32, anti-friction rollers 36 on the feeder, arms 33, having bifurcated ends 35 IIC engaging the rollers 36, bars 37, pivoted to 13, and thus operate the feeder or permit it to the arms 33, said bars having notches 4:0 for rest, as the case may be, substantially as deengaging a pin 13 in the cross-head, beveled scribed, and for the purpose set forth.

inner ends 4E1 011 the bars 37, and anti-friction HERMANN H. STUKENBERG. rollers 42, with which said beveled ends en- Witnesses: gage, whereby said bars 37 may be raised or J AS. E. KNIGHT,

lowered out of or into engagement with the pin M. G. DEWEY. 

